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Datums for 9414863, Richmond CA


NOTICE: All data values are relative to the MLLW.

Elevations on Mean Lower Low Water

Station: 9414863, Richmond, CA
Status: Accepted (Nov 10 2011)
Units: Feet
Control Station: 9414290 San Francisco, CA
T.M.: 0
Epoch: 1983-2001
Datum: MLLW
DatumValueDescription
MHHW6.06Mean Higher-High Water
MHW5.45Mean High Water
MTL3.28Mean Tide Level
MSL3.26Mean Sea Level
DTL3.03Mean Diurnal Tide Level
MLW1.12Mean Low Water
MLLW0.00Mean Lower-Low Water
NAVD88
STND-11.57Station Datum
GT6.06Great Diurnal Range
MN4.32Mean Range of Tide
DHQ0.61Mean Diurnal High Water Inequality
DLQ1.12Mean Diurnal Low Water Inequality
HWI7.95Greenwich High Water Interval (in hours)
LWI1.48Greenwich Low Water Interval (in hours)
Max Tide-2.92Highest Observed Tide
Max Tide Date & Time02/06/1998 15:54Highest Observed Tide Date & Time
Min Tide-14.08Lowest Observed Tide
Min Tide Date & Time01/11/2009 01:48Lowest Observed Tide Date & Time
HAT7.59Highest Astronomical Tide
HAT Date & Time12/31/1986 19:00HAT Date and Time
LAT-2.12Lowest Astronomical Tide
LAT Date & Time05/25/1990 14:24LAT Date and Time
Tidal Datum Analysis Periods
10/01/1995 - 09/30/2005
10/01/2006 - 09/30/2011
To refer water level heights to NAVD88 (North American Vertical Datum of 1988), apply the values located at National Geodetic Survey.




Products available at 9414863 Richmond, CA

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services